In order to protect your building from any roof damages and leakages we always recommend to get your roof drains cleaned.  Make sure there is no debris on the roof that could blow away and clog your drains.  Clogged drains can cause water to stand on the roof and eventually deteriorate the underneath layers.  You might not believe this, but we have received emergency calls during storms where the top apartments were leaking tremendously, it was a disaster.  USA Construction & Painting Inc. resolved the problem with in 30 minutes.  All we did was clean the drains and the leader pipes, the water started to flow out and the leakages stopped immediately, at a cost of only $150 dollars.  We believe in honesty and life long mutual relations.